The lucky bastards at Motociclismo.it have spotted the Aprilia Tuono V4 testing at a track day at Mugello, and were fortunate enough to have their photo and video cameras at the ready. At an event that feels more like a setup press leak, than a true spy capture, we still get some of our clearest views of the 2011 Aprilia Tuono V4 yet.

The street-naked draws heavily from the RSV4, and has the usual differences where we’d expect to find them on these two bikes. Perhaps the most exciting is what appears to be an ABS and/or traction control system pick up on the front and rear wheels, which might be a hint of things to come in the Aprilia sport line. Check after the jump for a video of the Aprilia Tuono V4 going around the track, and more photos.

Motociclismo.it says to expect the 2011 Aprilia Tuono V4 to tip the scales bear 180kg (396 lbs), or about 10lbs less than the RSV4. The Tuono V4 is also expected to make less power than the Aprilia RSV4 superbike, but make more torque at a lower RPM. This would be more in-line with Tuono’s focus as a street bike, rather than a racing thoroughbred .

We expect the Aprilia Tuono V4 to be a 2011 model, and debut at the EICMA show later this year in Milan. Like the RSV4, we’ll likely see two models, an R and a Factory, which leaves some speculation as to which model we’re seeing in these photos.

We’re guessing this is the Aprilia Tuono V4 R, since it’s sporting a cheaper version of the Brembo radial calipers. The Aprilia Tuono V4 Factory will likely have Brembo monoblocs, and Öhlins suspension. Only time will tell what other goodies will come with the bike. More as we get it.